Question

Considerando que: A = 5/6 ; B = 1/ 2 e C= 2,5. Calcule o valor de:

a) A + B

b) C – B

c) C– 2B

d) A . B + C

e) A–B–C
Me ajudem pfvr

Answer 1

Primeiramente, vamos colocar tudo em fração.

A = 5/6

B = 1/2

C = 25/10 = 5/2

-----------------

a) 5/6 + 1/2 = 5/6 + 3/6 = 8/6 = 4/3

b) 5/2 - 1/2 = 4/2 = 2/1 = 2

c) 5/2 -2(1/2) = 5/2 - 2/2 =  3/2

d) 5/6 * 1/2 + 5/2 = 5/12 + 5/2 = 5/12 + 30/12 = 35/12

e) 5/6 - 1/2 - 5/2 = 5/6 - 6/2 = 5/6 - 18/6 = -13/6